ASHBURN, Va. — Washington Redskins receiver Joshua Morgan was standing at his locker checking his cellphone. He said he had already tried "30 times" to reach his mother, who works on the same floor where a gunman opened fire Monday morning at the Washington Navy Yard.

"Unfortunately, it's not the first time," Morgan said. "It kind of happened in 9/11 ... she was at the Pentagon. It happened to me when I was at Virginia Tech, the shooting down there. I'm kind of all too familiar with it."

The good news came a few minutes later, when a cousin tweeted that Lawanda Ware-Brown was OK. A Redskins official showed the tweet to Morgan, who verified the account as belonging to his cousin.

Morgan is a D.C. native who played at Virginia Tech from 2004-07. His mother works for the Department of Defense. He said his godmother works in an adjacent building at the Navy Yard and that she, too, was unharmed.

Police say several people were killed and others wounded when at least one gunman opened fire inside the Navy Yard.